Northern jet stream bringing snow from Dakotas to Great Lakes and will bring several inches to New England Friday. System in the Northwest will dive in and bring wet weather to east this weekend...with a change to snow on Christmas Day before ending. Not good for travel. Below..current temperatures and outlook for snowfall over the next 5 days.
Below - animated maps for the next couple followed by projected highs for Friday.
Above - models for Christmas Day: left - Canadian - snow ending by Christmas afternoon....center - GFS - some snowshowers - right - Euro - large storm with rain near coast ending as rain - heavy snow inland. That's my choice...a couple of more days to make it final. Be safe.